As often as there are material changes. If you need or want to add or remove a person, update it. If you get divorced, are widowed, have a child, etc, you'll want to update it to reflect those people.
If your assets change significantly, you'll also need an update. For example, buying a piece of real property or cashing out your investment accounts might prompt an update.
To ensure accurate information, listings for television programming must be updated regularly. It is often updated nightly, but it can be updated more frequently should the information be available in time.
3 Months
Hazard assessments should be reviewed annually and updated whenever the process or conditions change significantly.
a year
Annually.
Every time a new update found on system website flash player should be updated, if flash player not updated it will not work perfectly, one should check for update at every week atleast in once in a month
most dictionaries are updated yearly and some are only updated every decade
It gets updated really often, almost daily
It is generally recommended to repaint walls every 5-7 years to maintain a fresh and updated look in your home.
As often as there is an update! It can be useful to set Microsoft updates to automatically update to ensure you always have the latest and safest drivers.
When there is a significant change in the law and once a year.
Every 4-6 weeks